/*
 * This file is part of the OregonCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef OREGONCORE_QUEST_H
#define OREGONCORE_QUEST_H

#include "Platform/Define.h"
#include "Database/DatabaseEnv.h"

#include <string>
#include <vector>

class Player;

class ObjectMgr;

#define MAX_QUEST_LOG_SIZE 25

#define QUEST_OBJECTIVES_COUNT 4
#define QUEST_SOURCE_ITEM_IDS_COUNT 4
#define QUEST_REWARD_CHOICES_COUNT 6
#define QUEST_REWARDS_COUNT 4
#define QUEST_DEPLINK_COUNT 10
#define QUEST_REPUTATIONS_COUNT 5
#define QUEST_EMOTE_COUNT 4

enum QuestFailedReasons
{
    INVALIDREASON_DONT_HAVE_REQ                 = 0,
    INVALIDREASON_QUEST_FAILED_LOW_LEVEL        = 1,        //You are not high enough level for that quest.
    INVALIDREASON_QUEST_FAILED_WRONG_RACE       = 6,        //That quest is not available to your race.
    INVALIDREASON_QUEST_ALREADY_DONE            = 7,        //You have completed that quest.
    INVALIDREASON_QUEST_ONLY_ONE_TIMED          = 12,       //You can only be on one timed quest at a time.
    INVALIDREASON_QUEST_ALREADY_ON              = 13,       //You are already on that quest
    INVALIDREASON_QUEST_FAILED_EXPANSION        = 16,       //This quest requires an expansion enabled account.
    INVALIDREASON_QUEST_ALREADY_ON2             = 18,       //You are already on that quest
    INVALIDREASON_QUEST_FAILED_MISSING_ITEMS    = 21,       //You don't have the required items with you. Check storage.
    INVALIDREASON_QUEST_FAILED_NOT_ENOUGH_MONEY = 23,       //You don't have enough money for that quest.
    INVALIDREASON_DAILY_QUESTS_REMAINING        = 26,       //You have already completed 10 daily quests today
    INVALIDREASON_QUEST_FAILED_CAIS             = 27,       //You cannot complete quests once you have reached tired time
};

enum QuestShareMessages
{
    QUEST_PARTY_MSG_SHARING_QUEST   = 0,
    QUEST_PARTY_MSG_CANT_TAKE_QUEST = 1,
    QUEST_PARTY_MSG_ACCEPT_QUEST    = 2,
    QUEST_PARTY_MSG_REFUSE_QUEST    = 3,
    QUEST_PARTY_MSG_TOO_FAR         = 4,
    QUEST_PARTY_MSG_BUSY            = 5,
    QUEST_PARTY_MSG_LOG_FULL        = 6,
    QUEST_PARTY_MSG_HAVE_QUEST      = 7,
    QUEST_PARTY_MSG_FINISH_QUEST    = 8,
};

enum __QuestTradeSkill
{
    QUEST_TRSKILL_NONE           = 0,
    QUEST_TRSKILL_ALCHEMY        = 1,
    QUEST_TRSKILL_BLACKSMITHING  = 2,
    QUEST_TRSKILL_COOKING        = 3,
    QUEST_TRSKILL_ENCHANTING     = 4,
    QUEST_TRSKILL_ENGINEERING    = 5,
    QUEST_TRSKILL_FIRSTAID       = 6,
    QUEST_TRSKILL_HERBALISM      = 7,
    QUEST_TRSKILL_LEATHERWORKING = 8,
    QUEST_TRSKILL_POISONS        = 9,
    QUEST_TRSKILL_TAILORING      = 10,
    QUEST_TRSKILL_MINING         = 11,
    QUEST_TRSKILL_FISHING        = 12,
    QUEST_TRSKILL_SKINNING       = 13,
    QUEST_TRSKILL_JEWELCRAFTING  = 14,
};

enum QuestStatus
{
    QUEST_STATUS_NONE           = 0,
    QUEST_STATUS_COMPLETE       = 1,
    QUEST_STATUS_UNAVAILABLE    = 2,
    QUEST_STATUS_INCOMPLETE     = 3,
    QUEST_STATUS_AVAILABLE      = 4,
    QUEST_STATUS_FAILED         = 5,
    MAX_QUEST_STATUS
};

enum __QuestGiverStatus
{
    DIALOG_STATUS_NONE                     = 0,
    DIALOG_STATUS_UNAVAILABLE              = 1,
    DIALOG_STATUS_CHAT                     = 2,
    DIALOG_STATUS_INCOMPLETE               = 3,
    DIALOG_STATUS_REWARD_REP               = 4,
    DIALOG_STATUS_AVAILABLE_REP            = 5,
    DIALOG_STATUS_AVAILABLE                = 6,
    DIALOG_STATUS_REWARD2                  = 7,             // not yellow dot on minimap
    DIALOG_STATUS_REWARD                   = 8,             // yellow dot on minimap

    // Custom value meaning that script call did not return any valid quest status
    DIALOG_STATUS_SCRIPTED_NO_STATUS = 0x1000
};

enum QuestFlags
{
    // Flags used at server and sent to client
    QUEST_FLAGS_STAY_ALIVE     = 0x00000001,                // Not used currently
    QUEST_FLAGS_PARTY_ACCEPT   = 0x00000002,                // If player in party, all players that can accept this quest will receive confirmation box to accept quest CMSG_QUEST_CONFIRM_ACCEPT/SMSG_QUEST_CONFIRM_ACCEPT
    QUEST_FLAGS_EXPLORATION    = 0x00000004,                // Not used currently
    QUEST_FLAGS_SHARABLE       = 0x00000008,                // Can be shared: Player::CanShareQuest()
    //QUEST_FLAGS_NONE2        = 0x00000010,                // Not used currently
    QUEST_FLAGS_EPIC           = 0x00000020,                // Not used currently: Unsure of content
    QUEST_FLAGS_RAID           = 0x00000040,                // Not used currently
    QUEST_FLAGS_TBC            = 0x00000080,                // Not used currently: Available if TBC expansion enabled only
    QUEST_FLAGS_UNK2           = 0x00000100,                // Not used currently: _DELIVER_MORE Quest needs more than normal _q-item_ drops from mobs
    QUEST_FLAGS_HIDDEN_REWARDS = 0x00000200,                // Items and money rewarded only sent in SMSG_QUESTGIVER_OFFER_REWARD (not in SMSG_QUESTGIVER_QUEST_DETAILS or in client quest log(SMSG_QUEST_QUERY_RESPONSE))
    QUEST_FLAGS_AUTO_REWARDED  = 0x00000400,                // These quests are automatically rewarded on quest complete and they will never appear in quest log client side.
    QUEST_FLAGS_TBC_RACES      = 0x00000800,                // Not used currently: Blood elf/Draenei starting zone quests
    QUEST_FLAGS_DAILY          = 0x00001000,                // Used to know quest is Daily one

};

enum QuestSpecialFlags
{
    QUEST_SPECIAL_FLAGS_NONE                 = 0x000,
    // Oregon flags for set SpecialFlags in DB if required but used only at server
    QUEST_SPECIAL_FLAGS_REPEATABLE           = 0x001,   // Set by 1 in SpecialFlags from DB
    QUEST_SPECIAL_FLAGS_EXPLORATION_OR_EVENT = 0x002,   // Set by 2 in SpecialFlags from DB (if required area explore, spell SPELL_EFFECT_QUEST_COMPLETE casting, table `*_script` command SCRIPT_COMMAND_QUEST_EXPLORED use, set from script DLL)
    QUEST_SPECIAL_FLAGS_AUTO_ACCEPT          = 0x004,   // Set by 4 in SpecialFlags in DB if the quest is to be auto-accepted.    
    QUEST_SPECIAL_FLAGS_CAST                 = 0x020,   // Set by 32 in SpecialFlags in DB if the quest requires RequiredOrNpcGo killcredit but NOT kill (a spell cast)
    
    QUEST_SPECIAL_FLAGS_DB_ALLOWED = QUEST_SPECIAL_FLAGS_REPEATABLE | QUEST_SPECIAL_FLAGS_EXPLORATION_OR_EVENT | QUEST_SPECIAL_FLAGS_CAST,

    // Oregon flags for internal use only
    QUEST_SPECIAL_FLAGS_DELIVER              = 0x080,     // Internal flag computed only
    QUEST_SPECIAL_FLAGS_SPEAKTO              = 0x100,     // Internal flag computed only
    QUEST_SPECIAL_FLAGS_KILL                 = 0x200,     // Internal flag computed only
    QUEST_SPECIAL_FLAGS_TIMED                = 0x400,     // Internal flag computed only
};

struct QuestLocale
{
    QuestLocale()
    {
        ObjectiveText.resize(QUEST_OBJECTIVES_COUNT);
    }

    std::vector<std::string> Title;
    std::vector<std::string> Details;
    std::vector<std::string> Objectives;
    std::vector<std::string> OfferRewardText;
    std::vector<std::string> RequestItemsText;
    std::vector<std::string> EndText;
    std::vector< std::vector<std::string> > ObjectiveText;
};

// This Quest class provides a convenient way to access a few pretotaled (cached) quest details,
// all base quest information, and any utility functions such as generating the amount of
// xp to give
class Quest
{
        friend class ObjectMgr;
    public:
        Quest(Field* questRecord);
        uint32 XPValue(Player* pPlayer) const;

        bool HasFlag(uint32 flag) const { return (QuestFlags & flag) != 0; }
        void SetFlag(uint32 flag) { QuestFlags |= flag; }

        bool HasSpecialFlag(uint32 flag) const { return (SpecialFlags & flag) != 0; }
        void SetSpecialFlag(uint32 flag) { SpecialFlags |= flag; }

        // table data accessors:
        uint32 GetQuestId() const { return QuestId; }
        uint32 GetQuestMethod() const { return QuestMethod; }

        int32  GetZoneOrSort() const
        {
            return ZoneOrSort;
        }
        uint32 GetMinLevel() const
        {
            return MinLevel;
        }
        int32  GetQuestLevel() const
        {
            return QuestLevel;
        }
        uint32 GetType() const
        {
            return Type;
        }
        uint32 GetRequiredClasses() const
        {
            return RequiredClasses;
        }
        uint32 GetRequiredRaces() const
        {
            return RequiredRaces;
        }
        uint32 GetRequiredSkill() const
        {
            return RequiredSkill;
        }
        uint32 GetRequiredSkillValue() const
        {
            return RequiredSkillValue;
        }
        uint32 GetRepObjectiveFaction() const
        {
            return RepObjectiveFaction;
        }
        int32  GetRepObjectiveValue() const
        {
            return RepObjectiveValue;
        }
        uint32 GetRequiredMinRepFaction() const
        {
            return RequiredMinRepFaction;
        }
        int32  GetRequiredMinRepValue() const
        {
            return RequiredMinRepValue;
        }
        uint32 GetRequiredMaxRepFaction() const
        {
            return RequiredMaxRepFaction;
        }
        int32  GetRequiredMaxRepValue() const
        {
            return RequiredMaxRepValue;
        }
        uint32 GetSuggestedPlayers() const
        {
            return SuggestedPlayers;
        }
        uint32 GetLimitTime() const
        {
            return LimitTime;
        }
        int32  GetPrevQuestId() const
        {
            return PrevQuestId;
        }
        int32  GetNextQuestId() const
        {
            return NextQuestId;
        }
        int32  GetExclusiveGroup() const
        {
            return ExclusiveGroup;
        }
        uint32 GetNextQuestInChain() const
        {
            return NextQuestInChain;
        }
        uint32 GetCharTitleId() const
        {
            return CharTitleId;
        }
        uint32 GetSrcItemId() const
        {
            return SrcItemId;
        }
        uint32 GetSrcItemCount() const
        {
            return SrcItemCount;
        }
        uint32 GetSrcSpell() const
        {
            return SrcSpell;
        }
        std::string GetTitle() const
        {
            return Title;
        }
        std::string GetDetails() const
        {
            return Details;
        }
        std::string GetObjectives() const
        {
            return Objectives;
        }
        std::string GetOfferRewardText() const
        {
            return OfferRewardText;
        }
        std::string GetRequestItemsText() const
        {
            return RequestItemsText;
        }
        std::string GetEndText() const
        {
            return EndText;
        }
        int32  GetRewOrReqMoney() const;
        uint32 GetRewHonorableKills() const
        {
            return RewHonorableKills;
        }
        uint32 GetRewMoneyMaxLevel() const
        {
            return RewMoneyMaxLevel;
        }
        // use in XP calculation at client
        uint32 GetRewSpell() const
        {
            return RewSpell;
        }
        uint32 GetRewSpellCast() const
        {
            return RewSpellCast;
        }
        uint32 GetRewMailTemplateId() const
        {
            return RewMailTemplateId;
        }
        uint32 GetRewMailDelaySecs() const
        {
            return RewMailDelaySecs;
        }
        uint32 GetPointMapId() const
        {
            return PointMapId;
        }
        float  GetPointX() const
        {
            return PointX;
        }
        float  GetPointY() const
        {
            return PointY;
        }
        uint32 GetPointOpt() const
        {
            return PointOpt;
        }
        uint32 GetIncompleteEmote() const
        {
            return IncompleteEmote;
        }
        uint32 GetCompleteEmote() const
        {
            return CompleteEmote;
        }
        uint32 GetQuestStartScript() const
        {
            return QuestStartScript;
        }
        uint32 GetQuestCompleteScript() const
        {
            return QuestCompleteScript;
        }

        bool   IsRepeatable() const { return SpecialFlags & QUEST_SPECIAL_FLAGS_REPEATABLE; }
        
        bool   IsAutoComplete() const
        {
            return QuestMethod ? false : true;
        }
        uint32 GetFlags() const
        {
            return QuestFlags;
        }
        bool   IsDaily() const
        {
            return QuestFlags & QUEST_FLAGS_DAILY;
        }

        // multiple values
        std::string ObjectiveText[QUEST_OBJECTIVES_COUNT];
        uint32 RequiredItemId[QUEST_OBJECTIVES_COUNT];
        uint32 ReqItemCount[QUEST_OBJECTIVES_COUNT];
        uint32 ReqSourceId[QUEST_SOURCE_ITEM_IDS_COUNT];
        uint32 ReqSourceCount[QUEST_SOURCE_ITEM_IDS_COUNT];
        int32  ReqCreatureOrGOId[QUEST_OBJECTIVES_COUNT];   // >0 Creature <0 Gameobject
        uint32 ReqCreatureOrGOCount[QUEST_OBJECTIVES_COUNT];
        uint32 ReqSpell[QUEST_OBJECTIVES_COUNT];
        uint32 RewChoiceItemId[QUEST_REWARD_CHOICES_COUNT];
        uint32 RewChoiceItemCount[QUEST_REWARD_CHOICES_COUNT];
        uint32 RewItemId[QUEST_REWARDS_COUNT];
        uint32 RewItemCount[QUEST_REWARDS_COUNT];
        uint32 RewRepFaction[QUEST_REPUTATIONS_COUNT];
        int32  RewRepValue[QUEST_REPUTATIONS_COUNT];
        uint32 DetailsEmote[QUEST_EMOTE_COUNT];
        uint32 OfferRewardEmote[QUEST_EMOTE_COUNT];

        uint32 GetReqItemsCount() const { return _reqItemsCount; }
        uint32 GetReqCreatureOrGOcount() const { return _reqCreatureOrGOcount; }
        uint32 GetRewChoiceItemsCount() const { return _rewChoiceItemsCount; }
        uint32 GetRewItemsCount() const { return _rewItemsCount; }

        typedef std::vector<int32> PrevQuests;
        PrevQuests prevQuests;
        typedef std::vector<uint32> PrevChainQuests;
        PrevChainQuests prevChainQuests;

        // cached data
    private:
        uint32 _reqItemsCount;
        uint32 _reqCreatureOrGOcount;
        uint32 _rewChoiceItemsCount;
        uint32 _rewItemsCount;

        // table data
    protected:
        uint32 QuestId;
        uint32 QuestMethod;
        int32  ZoneOrSort;
        uint32 MinLevel;
        int32  QuestLevel;
        uint32 Type;
        uint32 RequiredClasses;
        uint32 RequiredRaces;
        uint32 RequiredSkill;
        uint32 RequiredSkillValue;
        uint32 RepObjectiveFaction;
        int32  RepObjectiveValue;
        uint32 RequiredMinRepFaction;
        int32  RequiredMinRepValue;
        uint32 RequiredMaxRepFaction;
        int32  RequiredMaxRepValue;
        uint32 SuggestedPlayers;
        uint32 LimitTime;
        uint32 QuestFlags;
        uint32 CharTitleId;
        int32  PrevQuestId;
        int32  NextQuestId;
        int32  ExclusiveGroup;
        uint32 NextQuestInChain;
        uint32 SrcItemId;
        uint32 SrcItemCount;
        uint32 SrcSpell;
        std::string Title;
        std::string Details;
        std::string Objectives;
        std::string OfferRewardText;
        std::string RequestItemsText;
        std::string EndText;
        uint32 RewHonorableKills;
        int32  RewOrReqMoney;
        uint32 RewMoneyMaxLevel;
        uint32 RewSpell;
        uint32 RewSpellCast;
        uint32 RewMailTemplateId;
        uint32 RewMailDelaySecs;
        uint32 PointMapId;
        float  PointX;
        float  PointY;
        uint32 PointOpt;
        uint32 IncompleteEmote;
        uint32 CompleteEmote;
        uint32 QuestStartScript;
        uint32 QuestCompleteScript;

        uint32 SpecialFlags; // custom flags, not sniffed/WDB
};

enum QuestUpdateState
{
    QUEST_UNCHANGED = 0,
    QUEST_CHANGED = 1,
    QUEST_NEW = 2
};

struct QuestStatusData
{
    QuestStatusData()
        : m_status(QUEST_STATUS_NONE), m_rewarded(false),
          m_explored(false), m_timer(0), uState(QUEST_NEW)
    {
        memset(m_itemcount, 0, QUEST_OBJECTIVES_COUNT * sizeof(uint32));
        memset(m_creatureOrGOcount, 0, QUEST_OBJECTIVES_COUNT * sizeof(uint32));
    }

    QuestStatus m_status;
    bool m_rewarded;
    bool m_explored;
    uint32 m_timer;
    QuestUpdateState uState;

    uint32 m_itemcount[ QUEST_OBJECTIVES_COUNT ];
    uint32 m_creatureOrGOcount[ QUEST_OBJECTIVES_COUNT ];
};
#endif

